Vrm and Vram cooling

[technao]

I'm thinking of buying the Asus R9 270x Top ( http://www.techpowerup.com/reviews/ASUS/R9_270X_Direct_Cu_II_TOP/3.html )but I saw that she did not have any cooling for the Vrm and memories Vram. This is asus lower costs?
Normally on other cards comes with aluminum in VRM mosfets and heatskins Vram but this asus they are all naked.

This will affect the longevity of the card?

 

[technao]

anyone?

 

[Ferrum Master]

Be more patient... try google something from there, then steal the names and ebay some of the stuff...

http://www.frozencpu.com/cat/l3/g40...t_HeatsinksCoolers-Mosfet_Chipsink-Page1.html

 

[RCoon]

anyone?

See those black flat parts on either side of the copper? Those have thermal pads between them and the aforementioned parts that make contact and cool those parts with the same fin stack.

"ASUS is using a total of three heatpipes, two of which are twice as long to keep the card cool. You can also see a memory pad here; it cools some of the memory chips (not all). The remaining chips are cooled by the airflow of the fans."

 

[micropage7]

i think asus have been thinking of it, so you dont need too worry with that, just make sure your case has good airflow

 

[technao]

See those black flat parts on either side of the copper? Those have thermal pads between them and the aforementioned parts that make contact and cool those parts with the same fin stack.

"ASUS is using a total of three heatpipes, two of which are twice as long to keep the card cool. You can also see a memory pad here; it cools some of the memory chips (not all). The remaining chips are cooled by the airflow of the fans."

Yes, but that is not for the vrm the top of the card.

look at this example of asus gtx 760

Not understand why asus did not do the same with r9 270x, it seems that lower the cost of asus amd boards

 

[RCoon]

Maybe they just don't need it? VRM's can run at incredibly hot temperatures and operate normally, and have a perfectly long lifespan. There is airflow from the cooler, perhaps according to recommended specs, that's enough for the AMD card?

 

[silkstone]

What are the temps like on them when overclocking? Search for the brand and the tolerance, I know there are some that can get up to 105 C no probs.

 

[technao]

Maybe they just don't need it? VRM's can run at incredibly hot temperatures and operate normally, and have a perfectly long lifespan. There is airflow from the cooler, perhaps according to recommended specs, that's enough for the AMD card?

the cooler in this picture is upside down, the thermal pad is in contact with two memories on top.

In fact I do not know what the maximum temperature of the card amd but asus could have put more options vrm cooling as it does on other boards

 

[RCoon]

the cooler in this picture is upside down, the thermal pad is in contact with two memories on top.

In fact I do not know what the maximum temperature of the card amd but asus could have put more options vrm cooling as it does on other boards

I guess it just doesn't need it

 

[buildzoid]

The VRM is 5+1 or 6 phase design which means that it is built for around 180A which the card will never ever need so the VRM will never get stressed enough to get really hot.

 

[technao]

ahh ok, well okay, I was worried, tanks!!

What about the memories VRAM, is also not a problem? this thermal pads are in contact with two memories on top, all others are naked

 

[silkstone]

ahh ok, well okay, I was worried, tanks!!

What about the memories VRAM, is also not a problem? this thermal pads are in contact with two memories on top, all others are naked

I'm not sure if memory VRMs would ever be an issue. http://www.geeks3d.com/20100504/tutorial-graphics-cards-voltage-regulator-modules-vrm-explained/2/

The chips would fail well before you ever blew any VRMs powering them anyway. I'm not sure many cards even support memory overvolting.

 

[technao]

ok then, I think it is not a big problem then, is also important to have my well-cooled case, right?

are now an off topic.
For gaming which set you would choose?

FX 6300 + R9 270x TOP or Intel I5 4440 + gtx 660 ?

 

[buildzoid]

If you won't play RTSes the FX 6300 + R9 270X is the better setup

 

[RCoon]

If you won't play RTSes the FX 6300 + R9 270X is the better setup

Pretty much this. RTS's benefit more from CPU power, the i5 is more powerful than the 6300. However most other games, FPS, racing, RPG etc, benefit more from GPU power, which would make the 270X a better choice. Depends on what you like to play.

 

[silkstone]

Would AMDs new API help out with RTS' when it becomes more widely adopted?

 

[RCoon]

Would AMDs new API help out with RTS' when it becomes more widely adopted?

If the game were to bother using Mantle yes, odds are they won't, so don't hold your breath. Don't base your decision on the existence of that API.

 

[technao]

I especially like to play online FPS, BF4, cs.go, COD etc. ..

then fx 6300 + R9 is 270x better.

Thank you friends, I'll still buy my desktop, then post here some photos

edit :

The complete build is

AMD FX 6300
Mobo Asus M5A97 R2.0
GPU ASus R9 270x TOP
Kingstone 8 GB DDr3 HyperX
WD 1TB Blue
PSU : Corsair CX 500 or Nox NX 620 ( which recommend? )

 

[buildzoid]

PSU : Corsair CX 500 or Nox NX 620 ( which recommend? )

The corsair is better.

 

[technao]

I already bought the desktop, I chose corsair cx 600

 

[technao]

Thanks for the help Guys

 

[McSteel]

Maybe they just don't need it? VRM's can run at incredibly hot temperatures and operate normally, and have a perfectly long lifespan. There is airflow from the cooler, perhaps according to recommended specs, that's enough for the AMD card?

The MOSFET's used have an absolute max temp rating of 125°C, but at around 100°C the FETs are beginning to enter the dangerous "thermal runaway" zone, where the hotter they are, the hotter they get. One would be wise to avoid triple-figure temps on VRMs.

The VRM is 5+1 or 6 phase design which means that it is built for around 180A which the card will never ever need so the VRM will never get stressed enough to get really hot.

Actually, 180A isn't entirely inconceivable. Remember, this thing has a TDP of 180W. since the GPU is operating at ~1.1V, if it was to actually consume 180W, then it would be drawing ~165A of current. Luckily, this is an edge case, and going by those MOSFETs, each phase should handle ~48A without issue, so you're right that it shouldn't be a problem for the VRM to handle even a heavily OC'd GPU.

 

[buildzoid]

Actually, 180A isn't entirely inconceivable. Remember, this thing has a TDP of 180W. since the GPU is operating at ~1.1V, if it was to actually consume 180W, then it would be drawing ~165A of current. Luckily, this is an edge case, and going by those MOSFETs, each phase should handle ~48A without issue, so you're right that it shouldn't be a problem for the VRM to handle even a heavily OC'd GPU.

The TDP is the whole board so the output for the VRM is lower due to efficiency and the core isn't the only thing that uses power. Also TPU's reviews show the card drawing 137W peaks and 178W burst. If the MOSFETS really are 48A the this has a minimum output of 240A(5+1 phase) and max of 288A (6 phase). The MOSFET you linked has a different package.

 

[technao]

so there is reason for me to be concerned about my vrm and vrams not be actively dissipated? it will last less time for that?